<!--
 * @Descripttion: 
 * @Author: voanit
 * @Date: 2021-11-28 09:33:40
 * @LastEditors: voanit
 * @LastEditTime: 2021-11-28 10:06:57
-->
<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
  <style>
    ul{
      list-style: none;
      width:90px;
      height:90px;
      border-radius: 10px;
      background-color: pink;
      padding: 0;

      display:flex;
      float: left;
      margin-right: 20px;
      

    }
    li{
      width: 20px;
      height: 20px;
      border-radius:50%;
      background-color: red;
    }

    ul:nth-child(1){
      justify-content:center;  
      align-items:center;
    }
    ul:nth-child(2){
      justify-content:space-around; 
      align-items:center; 
      flex-direction: column;
    }
    ul:nth-child(3){
      justify-content:space-between; 
    }
    ul:nth-child(3) li{
      margin: 5px;
    }
    ul:nth-child(3) li:nth-child(2){
      align-self:center ;
    }
    ul:nth-child(3) li:nth-child(3){
      align-self:flex-end ;
    }

    ul:nth-child(4){
      justify-content:space-between; 
    }
    ul:nth-child(4) li{
      margin: 5px;
    }
    ul:nth-child(4) li:nth-child(1){
      align-self: flex-end;
    }
    ul:nth-child(4) li:nth-child(2){
      align-self: center;
    }
    ul:nth-child(5){
      justify-content:space-between; 
      flex-wrap: wrap;
    }
    ul:nth-child(5) li{
      margin: 12.5px;
    }
    ul:nth-child(6){
      justify-content:space-between; 
      flex-wrap: wrap;
    }
    ul:nth-child(6) li{
      margin:5px  12.5px;
    }
    ul:nth-child(6) li:nth-child(3){
      margin: 0 35px;
    }
  </style>
</head>
<body>
<ul>
  <li></li>
</ul>

<ul>
  <li></li>
  <li></li>
</ul>

<ul>
  <li></li>
  <li></li>
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</ul>

<ul>
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  <li></li>
</ul>

<ul>
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  <li></li>
  <li></li>
  <li></li>
</ul>
<ul>
  <li></li>
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</ul>
</body>
</html>